12421043113212 has 36 divisors (see below), whose sum is σ = 31397880914400. Its totient is φ = 4140315508032.

The previous prime is 12421043113211. The next prime is 12421043113253. The reversal of 12421043113212 is 21231134012421.

12421043113212 is a `hidden beast` number, since 1 + 2 + 4 + 2 + 1 + 0 + 431 + 13 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12421043113211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3601789 + ... + 6149387.

Almost surely, 2^{12421043113212} is an apocalyptic number.

12421043113212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12421043113212 is an abundant number, since it is smaller than the sum of its proper divisors (18976837801188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12421043113212 is a wasteful number, since it uses less digits than its factorization.

12421043113212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683042 (or 2683037 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 12421043113212 its reverse (21231134012421), we get a palindrome (33652177125633).

The spelling of 12421043113212 in words is "twelve trillion, four hundred twenty-one billion, forty-three million, one hundred thirteen thousand, two hundred twelve".